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US 6,476,784 B2Granted
Portable display system with memory card reader
AssigneeKopin Corporation
InventorsMatthew Zavracky, Jeffrey Jacobsen, Frederick P. Herrmann, Wen-Foo Chern, Hiap L. Ong, John C. C. Fan, Bor-Yeu Tsaur, Alan Richard
Life of this patent
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Abstract
An active matrix color sequential liquid crystal display has an active matrix circuit, a counterelectrode panel and an interposed layer of liquid crystal. The active matrix circuit has an array of transistor circuits formed in a first plane. Each transistor circuit is connected to a pixel electrode in an array of pixel electrodes having a small area. The display is housed in a portable display device having a docking port for a memory card used to input video data for the display.
Claims31
A portable display system comprising:
- a housing having a volume of less than 300 cm3;
- a color sequential liquid crystal display mounted to the housing, the color sequential liquid crystal display including an array of pixel electrodes in a first plane, and a counter electrode panel extending ina second plane that is parallel to the first plane;
- a light source positioned within the housing to illuminate the array of pixel electrodes;
- a lens that focuses an image on the display for viewing by a user;
- an audio transducer device mounted to the housing that generates an audio sound;
- a memory card reader positioned within the housing that receives input to be displayed on the display from a memory card that docks with the card reader;
- and
- a display circuit that generates images from the input to be displayed on the liquid crystal display and connected to the liquid crystal display, the counter electrode panel receiving an applied voltage such that the display circuit actuates the pixel electrodes to write an image, flashes the light source to illuminate the image, and switches the applied voltage to the counter electrode to erase the image.
5 more elements
A portable display system comprising:
- a housing;
- a liquid crystal display mounted to the housing, the liquid crystal display including an array of pixel electrodes in a first plane, and a counter electrode panel extending in a second plane that is parallel to the first plane;
- a light source positioned within the housing to illuminate the array of pixel electrodes;
- a lens that focuses an image on the display for viewing by a user;
- an audio transducer device mounted to the housing that generates an audio sound;
- a memory card reader operating at least at 15 MHZ positioned within the housing that receives video input to be displayed on the display from a memory card that docks with the card reader;
- and
- a display circuit that generates images from the input to be displayed on the liquid crystal display and connected to the liquid crystal display, the counter electrode panel receiving an applied voltage such that the display circuit actuates the pixel electrodes to write an image, flashes the light source to illuminate the image, and switches the applied voltage to the counter electrode to erase the image.
5 more elements
A portable display system comprising:
- a housing;
- a liquid crystal display mounted to the housing, the liquid crystal display including an array of pixel electrodes in a first plane, and a counter electrode panel extending in a second plane that is parallel to the first plane;
- a light source positioned within the housing to illuminate the array of pixel electrodes;
- a liquid crystal sensor that measures a property of the liquid crystal;
- a heater connected to the sensor and thermally coupled to the liquid crystal display;
- a lens that focuses an image on the display for viewing by a user;
- an audio transducer device mounted to the housing that generates an audio sound;
- a memory card reader within the housing that receives input to be displayed on the display from a memory card that docks with the card reader;
- and
- a display circuit that generates images from the input to be displayed on the, liquid crystal display and connected to the liquid crystal display, the counter electrode panel receiving an applied voltage such that the display circuit actuates the pixel electrodes to write an image, flashes the light source to illuminate the image, and switches the applied voltage to the counter electrode to erase the image.
7 more elements
Dependencies are inferred from the claim text.